MBRP 4" Installer Series Downpipe-Back Exhaust System S6004AL

Great product! somewhat simple to install in driveway. The only real difficult part is getting the old system off without having a lift. You have to cut the old system out in pieces. But since that has nothing to do with the product I give it a five star. sounds great (has a nice deep rumble to it). went from 19 MPGs (stock) to 21 MPGs. Noticable power increase. As well as a better responce time. Also noticed that when you let off the throttle the truck does not seem to have so much resistance. Over all it is a "Great Product". P.S also installed the turbo back extension.

easy to install and sounds great up the fuel mileage about 2 mpg

Awesome exhaust! Easy to install - about one hour with the truck on a lift. I wanted louder than stock exhaust, but not too much, and this was perfect. Very awesome turbo spooling wistle. A+ and highly recommended!

excellent product ,took about 1 hour to install,fit just right.sounds great ,not too loud to give you a headach on a long trip.thanks xdp for the great service.

I get alot of comments on how good it sounds. Increase power and MPG, Also installed the down pipe to get rid of the cat, I have a 33' toy hauler Do not know its there. I suggest this to any one, And it is easy to install, less than two hours.

I installed dieablo sport progammer 5 mpg no joke just installed 4in turboback installer exhaust what an easy job 3hrs total job, mpg ? will let u know but the performance and sound is awsome! excellent products and excellent prices!

This product exceeded my expectations. Sounds great. I bought both the front down pipe and the muffler delete pipe. It was very easy too install. Everything went together very well. Took me @ 2 hours in my driveway. I will definitely buy MBRP from mow on.

very nice exhaust system sounds great very clean sound. make sure to double check every thing twice before tightening anything! thanks

Very easy to install. You don't have to cut the factory exhaust if you can get the truck off the ground a little. It definitely takes a second pair of hands. Everything for the new exhaust slides into place, and looks great complete. Especially with the tip. It's not quite as loud as I had hoped/expected, but it should be flowing the exhaust gases a lot better. Nice, inexpensive, system.